Journal of Industrial Technology (산업기술연구)
- Volume 25 Issue A
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- Pages.67-73
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- 2005
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- 1229-9588(pISSN)
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- 1598-1371(eISSN)
A Study on Effect of Ground Improvement by Sand Compaction Pile Changing Replacement Width
모래다짐말뚝 개량폭에 따른 보강효과에 관한 연구
- Published : 2005.02.28
Abstract
In this research, centrifuge model experiments and numerical approach of finite element method to analyze experimental results were performed to investigate the behavior of improved ground with sand compaction piles. One of typical clay minerals, kaolinite powder, were prepared for soft ground in model tests. Jumunjin standard sand was used to sand compaction pile installed in the soft soil. In order to investigate the characteristics of mechanical behavior of sand compaction piles with low replacement ratios, centrifuge model experiments with the replacement ratio of 40%, changing the width of improved area with respect to testing results the width of surcharge loads, were carried out to obtain of bearing capacity, characteristics of load-settlement, vertical stresses acting on the sand pile and the soft soil failure mechanism in improved ground.
Keywords